As of the census[1] of 2000, there were 169 people, 66 households, and 53 families residing in the township.

15.2% of all households were made up of individuals, and 6.1% had someone living alone who was 65 years of age or older.

About 8.2% of families and 10.7% of the population were below the poverty line, including 33.3% of those under the age of eighteen and none of those 65 or over.

Highwater Township is located in Minnesota's 1st congressional district, represented by Jim Hagedorn, a Republican.

At the state level, Highwater Township is located in Senate District 22, represented by Republican Doug Magnus, and in House District 22B, represented by Republican Rod Hamilton.